The mechanical configuration of DIATEST internal gear gauges generally corresponds to the principle of split ball probes for sizes Mi=3.5 to 26.1 mm and to the principle of plunger probes for sizes Mi=26.0 to 333.0 mm. Internal gear gauges are comparative gauges which can be used in conjunction with regular accessories for split ball and plunger probes: right angle attachments, depth extensions, checking stands with floating holders etc.

Measuring process:

To set the gauge use measured sample components or setting masters. Setting masters cannot be provided by DIATEST. Introduce the gauge

into the measured component / setting master and determine the minimum size (reversal point) by swinging to and from and set the

indicator to zero. This procedure is then repeated in the component, here the reversal point shows the deviation to the setting master.

The digital indicator MDU-M125 stores the minimum value during the oscillation through the component. The size Mi can be displayed